The Black Swan actress in a Giambattista Valli white ruffled dress joined Audrey's son Sean Ferrer for the event. The Audrey Hepburn Children’s House aims to ensure the safety, health and well-being of infants, children, and adolescents through assessment, intervention, and prevention of child abuse and neglect.
Last month, Natalie traveled to Washington DC to speak at the Holocaust Memorial Museum's Elie Wiesel National Tribute Dinner and announced her involvement as an ambassador with Free the Children in Paris.
More pictures of Natalie celebrating The Audrey Hepburn Children's House anniversary after the jump!
PHOTO CREDIT: getty images